Note 13 - Guarantees (Tables)

12 Months Ended

Dec. 31, 2020

Guarantees [Abstract]

Deferred Revenue, by Arrangement

(in millions)
Deferred revenue on extended warranties as of December 31, 2018	$	22
New extended warranty and maintenance arrangements		98
Recognition of extended warranty and maintenance arrangement    revenue		(99	)
Deferred revenue on extended warranties as of December 31, 2019		21
New extended warranty and maintenance arrangements		91
Recognition of extended warranty and maintenance arrangement    revenue		(93	)
Deferred revenue on extended warranties as of December 31, 2020	$	19